{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216784",
    "entityType": "User",
    "nonce": "0xc97ae6adeb4c4041b37c17b1439f66cffc99806a0d38db05fc1c61e79065d41d",
    "signature": "0x82ca53a9c8c469a5a392f28fd2a98dde1fc2aa0f87564ad29cda6d275201a21c7e5e428518642f017b50bd949452d91bdea02fd25212ecd05e2f208caaa55af81c",
    "signer": "0x6135DFED4766632f3E2e097527cad142835825E1",
    "userId": "312072568"
  }
}